Inaccurate subscription counts

[Chang Lan]

Some of the subscription counts shown in README.md differ from the results of manual API query https://api.spencerwoo.com/substats/?source=feedly|inoreader|feedsPub&queryKey=<feedUrl>. The script was only able to update the first few dozens blog feeds, then ran into too many requests, slow down failures for the remaining ones.

Here is an example from https://github.com/timqian/chinese-independent-blogs/blob/master/cache/https%253A%252F%252Fwww.chen.fun%252Fzh%252Findex.xml.json:

{"status":200,"data":{"totalSubs":0,"subsInEachSource":{"feedly":0,"inoreader":0,"feedsPub":0},"failedSources":{"feedly":"too many requests, slow down","inoreader":"RSS feed not found on Inoreader"}},"lastModified":1641603278507}

Note the too many requests, slow down failure.

[yzqzss]

#1079 已完全使用 feeds.pub 的 API。